Pregnancy conception. I cant afford any!

I am 27 yrs old married female my lmp is 18th may I had unprotected sex pn 22nd may and 31 may I have been experiencing pregnancy symptoms like nausea fatigue loss of appetite increased vaginal discharge and i missed my periods in this month after missing the period i started checking through upt almost 10-15 times till the date i kept getting two lines one.line. Was faint every time I checked even with early morning first urine faint but clearly visible almost 15 times yesterday I went for a ultrasound my et was 8.1 but no gestational sac is so is it early to check as the person doing my ultrasound asked me to repeat after one week I had pcod but now my periods are regular after hormonal treatment with contraceptive pills for almost 6 months and this is happening after 7-8 month's post treatment completion my query is that is it delayed implementation m any chance of being pregnant plzz guide in reply don't ask for personal consultation i cant afford any