Trying to conceive for 6 months.

Hi all,

Stopped my bc last week in August. Got a period( on bc) the 28th of August.

Did not get a period in sept.

Then got my period Oct 8, nov 13, dec 27 and haven't gotten one since the dec date.

I used an ovulation kit mid jan. Had sex during my fertile window 2x.

I have not had a period since December 27

Took a pregnancy test on feb 19 and it was negative. Was it too early? Pls. If anyone could give some advice. Thank you in advance!