Test too early ?? Help

I have my cycle June 15th through the 19th. I had sex twice on the 24th got a positive ovulation test on the 25th and 26th and also had sex again on the 27th.. Since June 2nd I have been cramping; not period cramps, not stomach virus, not fart or poop cramp.. Although I sometime when I do cramp sometimes I do fart.. This is embarrassing.. Also I have been having fading Off and on migraine headaches.. Some even sick head aches.. I'm confused .. Idk if we didn't have sex in time or what.. Any advice or opinions? Thanks!