I'd love some advice on whether to take a pregnancy test. I had an IUD (copper) inserted on 9 Feb and my implant (Nexplanon) removed on 20th March. While on the implant my periods stopped completely. I got my first period on 22nd April (33 days later), lasted six days. I got my next period on 26th May (34 days after start of the first period), also six days. It's now 41 days after the start of my last period. I've had occasional cramps for the last week, almost like I'm about to get my period but no joy. I've had PiV sex with my partner twice since my last period, both times he ejaculated inside. No condom or other contraceptive methods, but according to my period tracker (Clue) both times were after my most fertile window. However since I don't notice ovulation (no pain, spotting or mood changes) and I'm still relatively new to my cycle after 4 years with the implant I'm not sure how reliable this is.
I'm not sure whether to take a test, or give it a bit more time. The NHS says that if periods are irregular then test 21 days after sex but it's only been 10 days. Will a test now be reliable?