Knitting first sweater

Hi! I’m new to this site. I am currently knitting my first sweater as a gift to my boyfriend. I have no one to ask questions and I am currently stuck on the sleeves.

Instructions:
SLEEVES

Using 3.75mm needles, cast on 40[44:44:48:48:52] sts work as Front to **.

Next row: Purl, inc 6[4:6:6:8:8] sts evenly across row. 46[48:50:54:56:60] sts.

Change to 4.5mm needles and patt as folls:

Row 1 (RS): K5[6:7:9:10:12], (p3, W3 x 4) three times, p3, k5[6:7:9:10:12].

Row 2: P5[6:7:9:10:12], (k3, p8) three times, k3, p to end.

Row 3: K5[6:7:9:10:12], (p3, k1, W3 x 3, k1) three times, p3, k to end.

Row 4: As Row 2.

These 4 rows set patt.

Cont in patt shaping Sleeve by inc 1 st at each end of next row, then on every foil 4th row until there are 70[74:82:92:94:98] sts, then on every foll 6th[6th:6th:4th:4th:4th] row until there are 82[86:90:96:100:104] sts, working extra sts into st st.

Work straight for a few rows until Sleeve meas 46[47:47:47:48:48]cm (18[18.5:18.5:18.5:19:19]in) from beg, ending after a WS row.

So I understand and know the 4 row pattern. What I do not understand is what follows. After I change to my 4.5mm needles do i complete the pattern for one turn and then proceed to increase stitches on the second round of the pattern? Or do i immediately increase 1 stitch on either end of work on the first row of pattern?

For the moment i just have 50 stitches on my needle from completing the purls. Will i have 52 after completing the first row of pat?

I appreciate any help I can get. Thank you

http://knitted-patterns.com/knitting-for-men/pullovers-sweaters/3895-mens-jumper-free-knitting-pattern

I read that as working the pattern through once, then begin the shaping.

So you’d have
Rows 1-4: Pattern as normal
Row 5: Increase - 52 stitches
Rows 6-8: Pattern as normal
Row 9: Increase - 54 stitches
etc., etc.

Thank you so much! I really appreciate the help. :grinning::grinning::grinning::grinning: